MUHAMMAD MUSA HAYATU, PHD; MOHAMMED HADIZA TALATU, PHD. INFORMATION SOURCES UTILIZED FOR RESEARCH WRITING BY POSTGRADUATE STUDENTS IN AHMADU BELLO UNIVERSITY, ZARIA . NASARAWA JOURNAL OF LIBRARY AND INFORMATION SCIENCE (NAJLIS), [S. l.], v. 8, n. 1, p. 51–63, 2024. Disponível em: https://najlisnsuk.ng/index.php/najis/article/view/230. Acesso em: 14 dec. 2025.